class alter_keys:
    def oncalc(self,*d,timekey=None):
        return d
class alter_values:
    def __init__(self,data={}):
        self.data=data
    def oncalc(self,v,timekey=None):
        if v in self.data.keys():
            return self.data[v]
        return v
alter_names=alter_keys